Is anyone running this setup? I'm interested in the stage 1 or stage 2 Dinan suspension with the GC street camber plates, but wasn't able to find any reviews. Would these be good setups for a DD/track car?

I haven't seen any. I have a Dinan Stage II setup waiting to be installed. I am leaning heavily towards using the GC plates.

Richard from M-World showed a pic of the OEM strut mounts vrs GC plates which look like the same height. So the theory is you lose the additional 1/4" of travel with the GC plates and the dinan springs.

I haven't had a chance yet but I want to call GC to see if they can shave 1/4" off the bottom of the GC plates like Dinan does. If yes, that would be a win-win IMO.

I'm not sure I would want more necessarily. I'm just looking for the on-the-fly adjustability so I could run a DD friendly setup everyday, and switch to more camber at the track.

On that note, is there an issue with on-the-fly adjustments and alignment, especially for a DD car?

With Dinan plates, the range of adjustment will be very limited. You are constrained by the mounting holes on the strut tower. GC plates, on the other hand, will have a wide range of adjustment as the mechanism is completely different.

Either way, make sure you have a repeatable method of adjusting between the 'street' and 'track' camber settings, i.e. by marking or even using a camber gauge.